The STERN DEFENSE 9MM Upper featuring a 6" barrel and 8" M-LOK rail provides an excellent balance of compactness and versatility for your AR-15 platform. This complete upper includes a 6" 9mm barrel with a 1:10 twist rate, engineered for accuracy and reliability. The free-float 8" M-LOK handguard offers ample real estate for accessories while maintaining a sleek profile. The upper comes equipped with a Glock-compatible bolt carrier group and an enhanced charging handle for smooth operation. Precision-machined from premium materials and finished with a durable coating, this upper ensures consistent performance across various shooting scenarios.

Features and Specifications:

• Caliber: 9mm
• Barrel: 6" 4150 Chrome-moly steel, 1:10 twist rate, Melonite coating
• Gas System: Blowback operated
• Upper Receiver: 7075-T6 aluminum, hard-coat anodized
• Handguard: 8" free-float M-LOK compatible
• Bolt Carrier Group: Glock-compatible, 8620 AISI steel with Mag-Phosphate finish
• Charging Handle: Enhanced design for easy manipulation
• Muzzle Device: SD MBC 9MM Blast Can (1/2-36 thread)
• Includes assembled upper receiver with dust cover and forward assist
• Made in the USA